213981022 has 8 divisors (see below), whose sum is σ = 321037200. Its totient is φ = 106968624.

The previous prime is 213981017. The next prime is 213981041. The reversal of 213981022 is 220189312.

213981022 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7479 + ... + 21997.

It is an arithmetic number, because the mean of its divisors is an integer number (40129650).

Almost surely, 2^213981022 is an apocalyptic number.

213981022 is a deficient number, since it is larger than the sum of its proper divisors (107056178).

213981022 is a wasteful number, since it uses less digits than its factorization.

213981022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21890.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 213981022 is about 14628.0901692600. The cubic root of 213981022 is about 598.1247209127.

The spelling of 213981022 in words is "two hundred thirteen million, nine hundred eighty-one thousand, twenty-two".